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How common is dementia?

According to the Alzheimer’s Society there are around 800,000 people in the UK with dementia. One in three people over 65 will develop dementia, and two-thirds of people with dementia are women.

Dementia is most common in older people but younger people (under 65) can get it too.

40-64 years: 1 in 1,400

65-69 years: 1 in 100

70-79 years: 1 in 25

80+ years: 1 in 6

Future projections

The number of people with dementia is increasing because people are living longer. The Alzheimer’s Society has produced the following figures showing that the number of people in the UK with dementia will double in the next 40 years. It is estimated that by 2021, the number of people with dementia in the UK will have increased to around 1 million.